The student provides a focused and detailed description of the aim of the experiment, which is to examine the relationship between the roasting degree of coffee beans and their caffeine content. The background information section is well-organized with relevant and focused information to understand the experiment. The methodology is highly appropriate to the topic and focused on answering the research question. The student shows full awareness of safety hazards, ethical concerns, and environmental issues that can arise during the experiment. However, the methodology could include more appropriate steps to assure the relevancy and validity of the obtained results.
